package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("ppt.pptx");
        BufferedInputStream bis = new BufferedInputStream(fis);
        FileOutputStream fos = new FileOutputStream("ppt_cp.pptx");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        int d;
        while ((d = bis.read()) != -1) {
            bos.write(d);
        }
        System.out.println("写出完毕!");
        bis.close();
        bos.close();
    }
}
